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介绍利用ispPAC2 0器件实现的 3种应用电路。压力测量报警电路 :介绍了压力测量电桥与器件的接口 ,如何实现线性放大 ,并用其内部的比较器实现过压报警 ,报警门限可在其内部任意设定 ;温度监控电路 :其工作情况与压力测量报警电路相近 ;压控振荡器 :利用其内部的放大器、积分器和比较器 ,通过改变极性和比较器的输出模式 ,实现了电压控制的方波和三角波发生器 ,并给出了仿真波形 ,其结果验证了方案设计的正确性 ,从而说明了利用EDA技术实现电子系统的优越性。
Describes three application circuits implemented using ispPAC20 devices. Pressure measurement alarm circuit: describes the interface of the pressure measurement bridge and the device, how to achieve linear amplification, and use its internal comparator to achieve over-voltage alarm, the alarm threshold can be arbitrarily set in its internal temperature monitoring circuit: its work and Voltage measurement alarm circuit is similar; VCO: By its internal amplifiers, integrators and comparators, by changing the polarity and the comparator output mode, the voltage control of the square wave and triangular wave generator, and gives the Simulation of the waveform, the results verify the correctness of the program design, which illustrates the use of EDA technology to achieve the superiority of electronic systems.